Senior Java Developer

Responsibilities

• Design, develop, and maintain scalable backend applications using Core Java and Spring Boot frameworks.
• Build and consume RESTful APIs and integrate with various third-party and internal systems.
• Collaborate with cross-functional teams including product managers, frontend developers, DevOps, and QA engineers to deliver end-to-end solutions.
• Ensure high code quality through unit testing, integration testing, and participation in code reviews.
• Analyze system requirements and prioritize tasks based on business needs and timelines.
• Optimize backend performance, memory usage, and responsiveness for high-load environments.
• Follow best practices in design, development, and documentation to ensure maintainable and scalable codebases.
• Troubleshoot and resolve production issues with timely root cause analysis and resolutions.
• Participate in sprint planning, stand-ups, and other Agile ceremonies.

Professionalism & Adaptability

• Demonstrate the ability to work effectively under high-pressure conditions and tight deadlines.
• Adapt quickly to changing requirements and contribute proactively to problem-solving and innovation.

Qualifications

MUST HAVE

Experience & Technical Skills

• 3+ years of professional experience in Java backend development, with strong skills in Core Java (Java 8 or above).
• Hands-on experience with Spring Boot, Spring MVC, Spring Data, and related frameworks.
• Solid understanding of object-oriented programming (OOP) principles and design patterns.
• Experience working with relational databases (e.g., PostgreSQL, MySQL) and JPA/Hibernate.
• Familiarity with RESTful API design, JSON, and HTTP protocols.
• Working knowledge of build tools like Maven or Gradle.
• Experience with version control systems, particularly Git.
• Familiarity with unit testing frameworks such as JUnit, Mockito, or TestNG.
• Good problem-solving and debugging skills with attention to performance and reliability.
• Excellent communication skills and the ability to work effectively in a collaborative team environment.

NICE TO HAVE

• Knowledge of microservices architecture and containerized deployments (Docker, Kubernetes).
• Experience with cloud platforms such as AWS, Azure, or GCP.
• Familiarity with message brokers (e.g., Kafka, RabbitMQ).
• Exposure to CI/CD pipelines and DevOps practices.
• Understanding of security best practices in backend development.

Security & Best Practices

• Knowledge of game security fundamentals and securing large-scale web-based game systems.

Soft Skills & Collaboration

• Ability to work independently or collaboratively in a fast-paced, agile environment.
• Excellent communication skills and team collaboration mindset.

Benefits

• A supportive and flexible working environment
• Premium health insurance
• SHUI contributions which comply with local laws
• 13th month salary & performance bonuses
• 15 paid annual leaves per year
• Macbook provided
• Work from home 3 days/month
• Company trip, happy hour, free snack and coffee